🩺(helm) update liveness and readiness probes from 10s to 30s

Updated the liveness and readiness probes interval from every 10 seconds to
every 30 seconds. This change reduces the load on the server by decreasing
the frequency of health checks.

Given the current stability of the application, a 30-second interval is
sufficient to ensure that the application remains responsive and healthy.

src/helm/meet/values.yaml

@@ -143,10 +143,10 @@ backend:
   probes:
     liveness:
       path: /__heartbeat__
-      initialDelaySeconds: 10
+      initialDelaySeconds: 30
     readiness:
       path: /__lbheartbeat__
-      initialDelaySeconds: 10
+      initialDelaySeconds: 30
 
   ## @param backend.resources Resource requirements for the backend container
   resources: {}